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require_relative '../../spec_helper'
require_relative 'fixtures/classes'
describe "Binding#eval" do
it "behaves like Kernel.eval(..., self)" do
obj = BindingSpecs::Demo.new(1)
bind = obj.get_binding
bind.eval("@secret += square(3)").should == 10
bind.eval("a").should be_true
bind.eval("class Inside; end")
bind.eval("Inside.name").should == "BindingSpecs::Demo::Inside"
end
it "does not leak variables to cloned bindings" do
obj = BindingSpecs::Demo.new(1)
bind = obj.get_empty_binding
bind2 = bind.dup
bind.eval("x = 72")
bind.local_variables.should == [:x]
bind2.local_variables.should == []
end
it "starts with line 1 if single argument is given" do
obj = BindingSpecs::Demo.new(1)
bind = obj.get_binding
bind.eval("__LINE__").should == 1
end
it "preserves __LINE__ across multiple calls to eval" do
obj = BindingSpecs::Demo.new(1)
bind = obj.get_binding
bind.eval("__LINE__").should == 1
bind.eval("__LINE__").should == 1
end
it "increments __LINE__ on each line of a multiline eval" do
obj = BindingSpecs::Demo.new(1)
bind = obj.get_binding
bind.eval("#foo\n__LINE__").should == 2
end
it "starts with line 1 if the Binding is created with #send" do
obj = BindingSpecs::Demo.new(1)
bind, line = obj.get_binding_with_send_and_line
bind.eval("__LINE__").should == 1
end
it "starts with a __LINE__ of 1 if a filename is passed" do
bind = BindingSpecs::Demo.new(1).get_binding
bind.eval("__LINE__", "(test)").should == 1
bind.eval("#foo\n__LINE__", "(test)").should == 2
end
it "starts with a __LINE__ from the third argument if passed" do
bind = BindingSpecs::Demo.new(1).get_binding
bind.eval("__LINE__", "(test)", 88).should == 88
bind.eval("#foo\n__LINE__", "(test)", 88).should == 89
end
ruby_version_is ""..."3.3" do
it "uses (eval) as __FILE__ if single argument given" do
obj = BindingSpecs::Demo.new(1)
bind = obj.get_binding
bind.eval("__FILE__").should == '(eval)'
end
end
it "uses 1 as __LINE__" do
obj = BindingSpecs::Demo.new(1)
bind = obj.get_binding
suppress_warning { bind.eval("__LINE__") }.should == 1
end
it "uses the __FILE__ that is passed in" do
bind = BindingSpecs::Demo.new(1).get_binding
bind.eval("__FILE__", "(test)").should == "(test)"
end
describe "with a file given" do
it "does not store the filename permanently" do
obj = BindingSpecs::Demo.new(1)
bind = obj.get_binding
bind.eval("__FILE__", "test.rb").should == "test.rb"
suppress_warning {bind.eval("__FILE__")}.should_not == "test.rb"
end
end
it "with __method__ returns the method where the Binding was created" do
obj = BindingSpecs::Demo.new(1)
bind, meth = obj.get_binding_and_method
bind.eval("__method__").should == meth
end
it "with __method__ returns the method where the Binding was created, ignoring #send" do
obj = BindingSpecs::Demo.new(1)
bind, meth = obj.get_binding_with_send_and_method
bind.eval("__method__").should == meth
end
it "reflects refinements activated in the binding scope" do
bind = BindingSpecs::Refined.refined_binding
bind.eval("'bar'.foo").should == "foo"
end
ruby_version_is "3.3" do
it "uses the caller location as default filename" do
binding.eval("[__FILE__, __LINE__]").should == ["(eval at #{__FILE__}:#{__LINE__})", 1]
end
end
end
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